These are all good questions, right now there are defaults which work as
we have seen, they could be changed, depending on the system. The
m.system_free=16384
parameter could probably be increased, even could have that amount *
cards used
possibly, think it was for 1 card. With dynamic buffers, the default,
of course memory is allocated upon stream startup and freed after stream
stop, so default/max should take that into account. So it's all to be
explored, still not sure and that is why they are not externally pulled
out into user configurable settings, hopefully to be explored and
figured out what works best (although alot is probably just from system
experience, and then we'll find the average best for the defaults,
although we probably are there already with the average one that works
mostly).
Thanks,
Chris
Robert Kulagowski wrote:
Is there now some recommended set of values to use? I have 4 encoder
cards (PVR-150's, 250 Rev 1 and 2's) in my MythTV masterbackend (along
with a M179 that still doesn't work) and I'll get messages like "IVTV:
ENC: Sleep timeout activated".
During periods of heavy loading I'll also get captures where the audio
and video become desynchronized; this is in the MPEG stream because
the loss of sync is evident in mplayer and in MythTV itself. At the
loss of sync there will usually be a little video glitch and then from
that point forward A/V will be diverged.
Also, is the vm.system_free=16384 still required with the dynamic
allocation code? Should it be changed higher / lower based on the
number of cards installed?
Thanks.
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